Sleep Tracker
Effectiveness tempered by strong validation (85-86% PSG accuracy in 1-2 studies) but limited RCTs specific to sleep improvement (1 completed, 2 ongoing; contrasts with hundreds for apps like CBT-i). Safety excellent with regulatory certs and zero formal AEs across trials/databases. Quality solid via transparency, eligibility, and peer validations, though sub required for premium features. Overall, reliable tracker for non-medical use.
Muse S Headband provides validated EEG sleep tracking (85-86% PSG accuracy) with moderate evidence for quality gains (20% PSQI). Safe per certs/trials, but best as wellness tool sans FDA clearance. Solid for guided meditation/sleep monitoring.